ac413dc955914b4f7f2515276f4d712fc2da41f6fd3f9bcf73fa522a78664889

General

Target

3c76b9fd28a436518a08e8e5e80f0c34.exe
Size

907KB
MD5

3c76b9fd28a436518a08e8e5e80f0c34
SHA1

dd886322857fda7ce0ecb845e335508ff1a7656d
SHA256

ac413dc955914b4f7f2515276f4d712fc2da41f6fd3f9bcf73fa522a78664889
SHA512

76b9d16683da6077f54135d430cbe5b5201408de994bc09d10fed4e031e8f468486a8ae6315f70de75a29370a47f1ea0158fb4e585a0830dcc944336ff391902
SSDEEP

24576:YdqM7RZHnYHQRjYKGuXQg/3+1XRkSlQhs/gFq9a/ZS1:y7Rd7jYNuRubkmgFEgS

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2740	3c76b9fd28a436518a08e8e5e80f0c34.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	3c76b9fd28a436518a08e8e5e80f0c34.exe

Loads dropped DLL 1 IoCs

pid	Process
1276	3c76b9fd28a436518a08e8e5e80f0c34.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Modifies system certificate store 2 TTPs 3 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	3c76b9fd28a436518a08e8e5e80f0c34.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474\Blob = 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	3c76b9fd28a436518a08e8e5e80f0c34.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D4DE20D05E66FC53FE1A50882C78DB2852CAE474	3c76b9fd28a436518a08e8e5e80f0c34.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1276	3c76b9fd28a436518a08e8e5e80f0c34.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1276	3c76b9fd28a436518a08e8e5e80f0c34.exe
2740	3c76b9fd28a436518a08e8e5e80f0c34.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 2740	1276	3c76b9fd28a436518a08e8e5e80f0c34.exe	29
PID 1276 wrote to memory of 2740	1276	3c76b9fd28a436518a08e8e5e80f0c34.exe	29
PID 1276 wrote to memory of 2740	1276	3c76b9fd28a436518a08e8e5e80f0c34.exe	29
PID 1276 wrote to memory of 2740	1276	3c76b9fd28a436518a08e8e5e80f0c34.exe	29

C:\Users\Admin\AppData\Local\Temp\3c76b9fd28a436518a08e8e5e80f0c34.exe
"C:\Users\Admin\AppData\Local\Temp\3c76b9fd28a436518a08e8e5e80f0c34.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: RenamesItself
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\3c76b9fd28a436518a08e8e5e80f0c34.exe
  C:\Users\Admin\AppData\Local\Temp\3c76b9fd28a436518a08e8e5e80f0c34.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious use of UnmapMainImage
  PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab9EB1.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9F12.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
\Users\Admin\AppData\Local\Temp\3c76b9fd28a436518a08e8e5e80f0c34.exe

Filesize
907KB

MD5
36c922bb71f8020796abe83e4cb7b3b3

SHA1
d84d783aab1125c7aa5e9a4e3161fdc8bd506c2d

SHA256
a62854cdbd3524fbb2629c13722b6c64cb836a5986679a5eaa88f93b0dca193e

SHA512
e72f6ef7bdda26c1639612f4b414fc0f1c49dd7d84240dcdb5ea1728709b99064c5b4806d019690b466d71585746a39dd725c99482de76407313e58555e90f26

Download Submit
memory/1276-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1276-12-0x00000000032B0000-0x0000000003398000-memory.dmp

Filesize
928KB

Download
memory/1276-14-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/1276-1-0x0000000000400000-0x00000000004BB000-memory.dmp

Filesize
748KB

Download
memory/1276-2-0x00000000014F0000-0x00000000015D8000-memory.dmp

Filesize
928KB

Download
memory/2740-18-0x00000000014F0000-0x00000000015D8000-memory.dmp

Filesize
928KB

Download
memory/2740-22-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/2740-24-0x0000000002FC0000-0x000000000307B000-memory.dmp

Filesize
748KB

Download
memory/2740-76-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2740-78-0x000000000EC50000-0x000000000ECE8000-memory.dmp

Filesize
608KB

Download

Analysis

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